[INFO] fetching crate concourse-api 0.0.1...
[INFO] checking concourse-api-0.0.1 against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] extracting crate concourse-api 0.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate concourse-api 0.0.1 on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate concourse-api 0.0.1
[INFO] finished tweaking crates.io crate concourse-api 0.0.1
[INFO] tweaked toml for crates.io crate concourse-api 0.0.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 23 packages to latest compatible versions
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.5)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.13.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded located_yaml v0.2.1
[INFO] [stderr]   Downloaded voca_rs v1.15.2
[INFO] [stderr]   Downloaded stfu8 v0.2.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0644e58d830ccade0a21e144d11643e24228087f8900bdf3248d6b5c72375cfe
[INFO] running `Command { std: "docker" "start" "-a" "0644e58d830ccade0a21e144d11643e24228087f8900bdf3248d6b5c72375cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0644e58d830ccade0a21e144d11643e24228087f8900bdf3248d6b5c72375cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0644e58d830ccade0a21e144d11643e24228087f8900bdf3248d6b5c72375cfe", kill_on_drop: false }`
[INFO] [stdout] 0644e58d830ccade0a21e144d11643e24228087f8900bdf3248d6b5c72375cfe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d8afcb07c2910d9b0b0817762a48dffc51d929165d47c8163fcd402bec5c03a
[INFO] running `Command { std: "docker" "start" "-a" "4d8afcb07c2910d9b0b0817762a48dffc51d929165d47c8163fcd402bec5c03a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.84
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling serde v1.0.203
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling either v1.12.0
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling stfu8 v0.2.7
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling serde_derive v1.0.203
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]    Compiling voca_rs v1.15.2
[INFO] [stderr]    Compiling linked-hash-map v0.5.6
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling located_yaml v0.2.1
[INFO] [stderr]    Compiling concourse-api v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `concourse-api v0.0.1 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/concourse-api-a69d58d39abefe43/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] running `Command { std: "docker" "inspect" "4d8afcb07c2910d9b0b0817762a48dffc51d929165d47c8163fcd402bec5c03a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d8afcb07c2910d9b0b0817762a48dffc51d929165d47c8163fcd402bec5c03a", kill_on_drop: false }`
[INFO] [stdout] 4d8afcb07c2910d9b0b0817762a48dffc51d929165d47c8163fcd402bec5c03a